EP2818534B1 - Flüssigkristalline polymerzusammensetzung, flüssigkristallanzeige und herstellungsverfahren dafür - Google Patents

Flüssigkristalline polymerzusammensetzung, flüssigkristallanzeige und herstellungsverfahren dafür Download PDF

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Publication number
EP2818534B1
EP2818534B1 EP14172512.7A EP14172512A EP2818534B1 EP 2818534 B1 EP2818534 B1 EP 2818534B1 EP 14172512 A EP14172512 A EP 14172512A EP 2818534 B1 EP2818534 B1 EP 2818534B1
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European Patent Office
Prior art keywords
liquid crystal
recess
array substrate
layer
barrier ribs
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EP14172512.7A
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English (en)
French (fr)
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EP2818534A1 (de
Inventor
Wonjin Choi
Geesung Chae
Dongcheon Shin
Jinki Kim
Hyesun Son
Sejin Jang
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LG Display Co Ltd
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LG Display Co Ltd
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Priority claimed from KR1020130085260A external-priority patent/KR102141165B1/ko
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Publication of EP2818534A1 publication Critical patent/EP2818534A1/de
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Publication of EP2818534B1 publication Critical patent/EP2818534B1/de
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    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
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    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
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    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
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    • C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
    • C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
    • C08F220/1811—C10or C11-(Meth)acrylate, e.g. isodecyl (meth)acrylate, isobornyl (meth)acrylate or 2-naphthyl (meth)acrylate
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    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
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    • C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
    • C08F220/281—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety and containing only one oxygen, e.g. furfuryl (meth)acrylate or 2-methoxyethyl (meth)acrylate
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    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
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    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
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    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
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    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
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    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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    • H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
    • H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
    • H01L29/66409—Unipolar field-effect transistors
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    • C—CHEMISTRY; METALLURGY
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    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
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Claims (9)

  1. Eine Flüssigkristall-Polymer-Zusammensetzung, aufweisend:
    ein Flüssigkristall;
    Acryl-Monomere, die eine Acrylmonomer-Gruppe A, die einen zyklischen Ring aufweist, und eine Acrylmonomer-Gruppe B, die eine Kettenstruktur oder ein Cyclohexanol aufweist, aufweisen; und
    einen Photo-Initiator;
    wobei die Acrylmonomer-Gruppe A, die einen zyklischen Ring aufweist, Isobornyl-Acrylat ist,
    wobei die Acrylmonomer-Gruppe B, die eine Kettenstruktur aufweist, eines oder mehrere ausgewählt aus der Gruppe bestehend aus 2-Methylheptyl-Acrylat, Isodecyl-Acrylat, Octyldecyl-Acrylat und Tridecyl-Acrylat ist,
    wobei die Acrylmonomer-Gruppe B, die Cyclohexanol aufweist, 3,3,5-Trimethyl-cyclohexanol-Acrylat ist,
    wobei ein Mengenverhältnis zwischen dem Flüssigkristall und den Acrylmonomeren 8:2 bis 9:1 beträgt, und
    wobei in den Acrylmonomeren ein Mengenverhältnis zwischen der Acrylmonomer-Gruppe A, die einen zyklischen Ring aufweist, und der Acrylmonomer-Gruppe B, die eine Kettenstruktur oder ein Cyclohexanol aufweist, 8:2 bis 9:1 beträgt, wobei ein Mengenverhältnis zwischen den Acrylmonomeren und dem Photo-Initiator 7:3 bis 9:1 beträgt.
  2. Die Flüssigkristall-Polymer-Zusammensetzung gemäß Anspruch 1, wobei der Photo-Initiator irgendeines ausgewählt aus der Gruppe bestehend aus 2-Benzyl-2-dimethylamino-1-(4-morpholinophenyl)-Butanon-1), Phenyl-bis(2,4,6-trimethylbenzoyl)-Phosphinoxid, Bis(.eta.5-2,4-cyclopentadien-1-yl)-bis(2,6-difluoro-3-(1H-pyrrol-1-yl)-phenyl)Titan, Bis(2,4,6-trimethylbenzoyl)-Phenylphosphinoxid, 2-Dimethylamino-2-(4-methyl-benzyl)-1-(4-morpholin-4-yl-phenyl)-Butan-1-on, 2-Hydroxy-1-[4-(2-Hydroxyethoxy)phenyl]-2-methyl-1-Propanon, 1-[9-Ethyl-6-(2-methylbenzoyl)-9Hcarbazol-3-yl],1-(0-Acetyloxim), 1-Hydroxy-cyclohexyl-phenyl-Keton, Oxy-phenyl-Essigsäure-2-[2oxo-2phenyl-acetoxy-ethoxy]-Ethylester, 2-Vethyl-1-[4-(methylthio)phenyl]-2-(4-morpholinyl)-1-Propanon), 2,4,6-Trimethylbenzoyldiphenylphosphinoxid, 2-Hydroxy-2-methyl-1-phenyl-Propan-1-on), und 2,2,-Dimethoxy-1,2-Diphenylethan-1-on ist.
  3. Eine Flüssigkristall-Anzeigevorrichtung, die eine Flüssigkristallschicht, die zwischen ein Dünnschichttransistor (TFT)-Matrixsubstrat und ein Farbfilter-Matrixsubstrat eingefügt ist, aufweist, die Flüssigkristall-Anzeigevorrichtung aufweisend:
    Barriererippen, die innerhalb der Flüssigkristallschicht angeordnet sind und das TFT-Matrixsubstrat und das Farbfilter-Matrixsubstrat stützen,
    wobei die Barriererippen mittels Aushärtens von Acrylmonomeren einer Flüssigkristall-Polymer-Zusammensetzung gemäß Anspruch 1 oder 2 gebildet sind.
  4. Die Flüssigkristall-Anzeigevorrichtung gemäß Anspruch 3, wobei das TFT-Matrixsubstrat aufweist:
    eine organische isolierende Schicht, die TFTs schützt;
    eine Pixelelektrode, die auf der organischen isolierenden Schicht angeordnet ist;
    eine Passivierungs-Schicht, die auf der Pixelelektrode angeordnet ist; und
    eine gemeinsame Elektrode, die auf der Passivierungs-Schicht angeordnet ist.
  5. Die Flüssigkristall-Anzeigevorrichtung gemäß Anspruch 4, wobei die Barriererippen derart angeordnet sind, dass sie mindestens eine Aussparung, die in der Passivierungs-Schicht gebildet ist, auffüllen,
    wobei die mindestens eine in der Passivierungs-Schicht gebildete Aussparung zu einer Gate-Leitung korrespondierend angeordnet ist,
    wobei das Farbfilter-Matrixsubstrat eine Überzugschicht, die Schwarzmatrizen und Farbfilter bedeckt, aufweist,
    wobei die Barriererippen derart angeordnet sind, dass sie mindestens eine Aussparung, die in der Überzugschicht gebildet ist, auffüllen.
  6. Ein Verfahren zum Herstellen einer Flüssigkristall-Anzeigevorrichtung, das Verfahren aufweisend:
    Bilden einer Zelle mittels Befestigens eines Dünnschichttransistor (TFT)-Matrixsubstrats und eines Farbfilter-Matrixsubstrats;
    Injizieren einer Flüssigkristall-Polymer-Zusammensetzung, die ein Flüssigkristall, Acryl-Monomere, die eine Acrylmonomer-Gruppe A, die einen zyklischen Ring aufweist, und eine Acrylmonomer-Gruppe B, die eine Kettenstruktur oder ein Cyclohexanol aufweist, aufweisen, und einen Photo-Initiator aufweist, in die Zelle; und
    Bestrahlen der Zelle mit UV-Licht zum Aushärten der Acrylmonomere zum Bilden von Barriererippen,
    wobei das Bestrahlen der Zelle mit UV-Licht einen ersten UV-Bestrahlungsvorgang, einen Raumtemperatur-Ruheprozess und einen zweiten UV-Bestrahlungsvorgang aufweist,
    wobei in dem ersten UV-Bestrahlungsvorgang eine Bestrahlungsintensität von 1 mW bis 20 mW reicht und eine Zeitdauer für die UV-Bestrahlung von 5 Minuten bis 60 Minuten reicht,
    wobei in dem Raumtemperatur-Ruheprozess die Zelle für 60 Minuten bis 200 Minuten ruhen gelassen wird, und
    wobei in dem zweiten UV-Bestrahlungsvorgang eine Bestrahlungsintensität von 50 mW bis 1500 mW reicht und eine Zeitdauer für die UV-Bestrahlung von 1 Minute bis 20 Minuten reicht, wobei in dem zweiten UV-Bestrahlungsvorgang die Temperatur 60°C oder niedriger ist.
  7. Das Verfahren gemäß Anspruch 6, wobei das Bilden des TFT-Matrixsubstrats aufweist:
    Bilden eines TFTs auf einem unteren Substrat;
    Bilden einer organischen isolierenden Schicht auf dem TFT;
    Strukturieren der organischen isolierenden Schicht zum Bilden eines Kontaktloches und mindestens einer ersten Aussparung;
    Bilden einer Pixelelektrode auf der organischen isolierenden Schicht;
    Bilden einer Passivierungs-Schicht auf der organischen isolierenden Schicht und der Pixelelektrode zum Bilden von mindestens einer zweiten Aussparung korrespondierend zu der mindestens einen ersten Aussparung; und
    Bilden einer gemeinsamen Elektrode auf der Passivierungs-Schicht,
    wobei die Barriererippen derart angeordnet sind, dass sie die mindestens eine zweite Aussparung, die in der Passivierungs-Schicht gebildet ist, auffüllen.
  8. Das Verfahren gemäß Anspruch 7, wobei das Bilden des Farbfilter-Matrixsubstrats aufweist:
    Bilden von Schwarzmatrizen und Farbfiltern auf einem oberen Substrat;
    Bilden einer Überzugschicht auf den Schwarzmatrizen und den Farbfiltern; und
    Strukturieren der Überzugschicht zum Bilden von mindestens einer dritten Aussparung,
    wobei die Barriererippen derart angeordnet sind, dass sie mindestens eine dritte Aussparung, die in der Überzugschicht gebildet ist, auffüllen.
  9. Das Verfahren gemäß Anspruch 7 oder 8, wobei die mindestens eine erste Aussparung und die mindestens eine zweite Aussparung korrespondierend zu einer Gate-Leitung angeordnet sind.
EP14172512.7A 2013-06-28 2014-06-16 Flüssigkristalline polymerzusammensetzung, flüssigkristallanzeige und herstellungsverfahren dafür Not-in-force EP2818534B1 (de)

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